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CVE-2025-3396

Incorrect Authorization in GitLab

MEDIUM
4.3
CVSS Score
Published: July 10, 2025 at 08:31 AM UTC
Updated: June 17, 2026 at 09:19 AM UTC
1 product affected across 1 vendorGitLab

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Severity
MEDIUM4.3
Exploit prediction
EPSS 0.4%
SSVC
No known exploit

Description

An issue has been discovered in GitLab EE affecting all versions from 13.3 before 17.11.6, 18.0 before 18.0.4, and 18.1 before 18.1.2 that could have allowed authenticated project owners to bypass group-level forking restrictions by manipulating API requests.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

GitLab· GitLabmaven
95%
13.3 ≤ v < 17.11.613.3.0 ≤ v < 17.11.618.0 ≤ v < 18.0.418.0.0 ≤ v < 18.0.418.1 ≤ v < 18.1.218.1.0 ≤ v < 18.1.213.318.018.1
Affected range stops below 17.11.6, so it looks safe — our inference, not a vendor statement
Affected range stops below 18.0.4, so it looks safe — our inference, not a vendor statement
Affected range stops below 18.1.2, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (2)

Issue TrackingPermissions RequiredBroken Link
Source: [email protected]
https://gitlab.com/gitlab-org/gitlab/-/issues/534636
Technical DescriptionExploitPermissions Required
Source: [email protected]
https://hackerone.com/reports/3079956

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

4.3MEDIUMGitLab
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusANALYZED
CWE
CWE-863

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